Adds file formats: epub svg bmp pnm bpm ppm

Partially fix for #660. Missing some files due to limitations [1]:
- PSD - only available from PyMuPDF>=1.23.0 (qubes-fedora is lower)
- TXT - only available from PyMuPDF>=1.23.7 (qubes-fedora is lower)
- JXR - PyMuPDF was refusing to due to missing codec [1]
- JPX - Generated test file was rejected by PyMuPDF [2]
- FB2 - Most often cannot be detected by mime type alone [3]
- CBZ - (idem)
- XPS - (idem)
- MOBI - (idem)
- PAM - General version of other file format already included, so I
  decided not to include this extension [0]

New test files were generated locally:
 - epub - generated with calibre's convert-ebook from another
   sample file
 - svg - generated with inkscape from a mix of a default template
   (hexagons) and a logo's PNG file
 - bmp, pnm, bpm, ppm - generated with ImageMagick's 'convert' from
   tests/test_docs/sample-png.png

[0]: https://github.com/freedomofpress/dangerzone/issues/660#issuecomment-1914681487
[1]: https://github.com/freedomofpress/dangerzone/issues/660#issuecomment-1916803201
[2]: https://github.com/freedomofpress/dangerzone/issues/660#issuecomment-1916870347
[3]: https://github.com/freedomofpress/dangerzone/issues/688

README.md

@@ -54,9 +54,12 @@ Dangerzone can convert these types of document into safe PDFs:
 - Hancom HWP (Hangul Word Processor) (`.hwp`, `.hwpx`)
   * Not supported on
     [Qubes OS](https://github.com/freedomofpress/dangerzone/issues/494)
+- EPUB (`.epub`)
 - Jpeg (`.jpg`, `.jpeg`)
 - GIF (`.gif`)
 - PNG (`.png`)
+- SVG (`.svg`)
+- other image formats (`.bmp`, `.pnm`, `pbm`, `ppm`)
 
 Dangerzone was inspired by [Qubes trusted PDF](https://blog.invisiblethings.org/2013/02/21/converting-untrusted-pdfs-into-trusted.html), but it works in non-Qubes operating systems. It uses containers as sandboxes instead of virtual machines (using Docker for macOS and Windows, and [podman](https://podman.io/) on Linux).
 

dangerzone/conversion/doc_to_pixels.py

@@ -145,6 +145,18 @@ class DocumentToPixels(DangerzoneConverter):
             "application/x-ole-storage": {
                 "type": "libreoffice",
             },
+            # .epub
+            "application/epub+zip": {"type": "PyMuPDF"},
+            # .svg
+            "image/svg+xml": {"type": "PyMuPDF"},
+            # .bmp
+            "image/bmp": {"type": "PyMuPDF"},
+            # .pnm
+            "image/x-portable-anymap": {"type": "PyMuPDF"},
+            # .pbm
+            "image/x-portable-bitmap": {"type": "PyMuPDF"},
+            # .ppm
+            "image/x-portable-pixmap": {"type": "PyMuPDF"},
             # .jpg
             "image/jpeg": {"type": "PyMuPDF"},
             # .gif

dangerzone/gui/main_window.py

@@ -562,7 +562,7 @@ class DocSelectionWidget(QtWidgets.QWidget):
             hwp_filters = ""
         self.file_dialog.setNameFilters(
             [
-                f"Documents (*.pdf *.docx *.doc *.docm *.xlsx *.xls *.pptx *.ppt *.odt *.odg *.odp *.ods {hwp_filters} *.jpg *.jpeg *.gif *.png *.tif *.tiff)"
+                f"Documents (*.pdf *.docx *.doc *.docm *.xlsx *.xls *.pptx *.ppt *.odt *.odg *.odp *.ods {hwp_filters} *.epub *.jpg *.jpeg *.gif *.png *.tif *.tiff *.bpm *.pnm *.pbm *.ppm)"
             ]
         )
 

install/linux/press.freedom.dangerzone.desktop

@@ -7,4 +7,4 @@ Terminal=false
 Type=Application
 Icon=press.freedom.dangerzone
 Categories=Office;Utility;OCR;Security
-MimeType=application/pdf;application/vnd.openxmlformats-officedocument.wordprocessingml.document;application/msword;application/vnd.ms-word.document.macroEnabled.12;application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;application/vnd.ms-excel;application/vnd.openxmlformats-officedocument.presentationml.presentation;application/vnd.ms-powerpoint;application/vnd.oasis.opendocument.text;application/vnd.oasis.opendocument.graphics;application/vnd.oasis.opendocument.presentation;application/vnd.oasis.opendocument.spreadsheet;image/jpeg;image/gif;image/png;image/tiff;image/x-tiff
+MimeType=application/pdf;application/vnd.openxmlformats-officedocument.wordprocessingml.document;application/msword;application/vnd.ms-word.document.macroEnabled.12;application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;application/vnd.ms-excel;application/vnd.openxmlformats-officedocument.presentationml.presentation;application/vnd.ms-powerpoint;application/vnd.oasis.opendocument.text;application/vnd.oasis.opendocument.graphics;application/vnd.oasis.opendocument.presentation;application/vnd.oasis.opendocument.spreadsheet;application/epub+zip;application/x-mobipocket-ebook;image/svg+xml;image/bmp;image/x-portable-anymap;image/x-portable-bitmap;image/x-portable-pixmap;image/jpeg;image/gif;image/png;image/tiff;image/x-tiff

install/pyinstaller/pyinstaller.spec

@@ -160,6 +160,48 @@ if p == "Darwin":
                     "CFBundleTypeName": "Hancom Office Document",
                     "CFBundleTypeRole": "Viewer",
                 },
+                {
+                    "CFBundleTypeExtensions": ["epub"],
+                    "CFBundleTypeIconFile": "../macos/document.icns",
+                    "CFBundleTypeMIMETypes": ["application/epub+zip"],
+                    "CFBundleTypeName": "EPUB document",
+                    "CFBundleTypeRole": "Viewer",
+                },
+                {
+                    "CFBundleTypeExtensions": ["svg"],
+                    "CFBundleTypeIconFile": "../macos/document.icns",
+                    "CFBundleTypeMIMETypes": ["image/svg+xml"],
+                    "CFBundleTypeName": "SVG Image",
+                    "CFBundleTypeRole": "Viewer",
+                },
+                {
+                    "CFBundleTypeExtensions": ["bmp"],
+                    "CFBundleTypeIconFile": "../macos/document.icns",
+                    "CFBundleTypeMIMETypes": ["image/bmp"],
+                    "CFBundleTypeName": "BMP Image",
+                    "CFBundleTypeRole": "Viewer",
+                },
+                {
+                    "CFBundleTypeExtensions": ["pbm"],
+                    "CFBundleTypeIconFile": "../macos/document.icns",
+                    "CFBundleTypeMIMETypes": ["image/x-portable-bitmap"],
+                    "CFBundleTypeName": "PBM Image",
+                    "CFBundleTypeRole": "Viewer",
+                },
+                {
+                    "CFBundleTypeExtensions": ["ppm"],
+                    "CFBundleTypeIconFile": "../macos/document.icns",
+                    "CFBundleTypeMIMETypes": ["image/x-portable-pixmap"],
+                    "CFBundleTypeName": "PPM Image",
+                    "CFBundleTypeRole": "Viewer",
+                },
+                {
+                    "CFBundleTypeExtensions": ["pnm"],
+                    "CFBundleTypeIconFile": "../macos/document.icns",
+                    "CFBundleTypeMIMETypes": ["image/x-portable-anymap"],
+                    "CFBundleTypeName": "PNM Image",
+                    "CFBundleTypeRole": "Viewer",
+                },
                 {
                     "CFBundleTypeExtensions": ["jpg", "jpeg"],
                     "CFBundleTypeIconFile": "../macos/document.icns",